Tolvaptan is the only approved drug therapy for adults with ADPKD at CKD stages 2-4. New trials are underway to assess children and ARPKD.
Many trials against several different targets have failed in recent years, including lixivaptan, lanreotide, pasireotide (target AVPR2); Venglustat (target lipid); everolimus, sirolimus (target mTOR); bardoxolone (target TF, NRF-2); simvastatin, etanercept (target metabolic pathways).
Ongoing and Planned Trials
Active Phase 3:
Tolvaptan in children and ARPKD (AVPR2) - Otsuka
Metformin "IMPEDE" UK (metabolic) - National Institute Health Research (NIHR), UK